TWI601900B - Piezoelectric controlled pilot operated valve - Google Patents

Description

Piezoelectrically controlled guided actuated valve

The present invention relates to a fluid control valve, and more particularly to a fluid control valve driven by a piezoelectric element.

The fluid control valve is a fluid control component widely used in the field of automatic control engineering, which penetrates the hole formed in the interior of the valve body and cooperates with the valve stem displacement inside the valve body to form channels of different flow paths, thereby guiding A working fluid, such as a high pressure gas, is used to manipulate the flow direction of the working fluid to perform other mechanisms or components.

The fluid control valve of the prior art is generally in the form of a solenoid coil with a spring control. When the fluid control valve is actuated, a power source is applied to the electromagnetic coil by applying a voltage or a current, so that the coil generates a magnetic adsorption force after being energized, and the magnetic flux is transmitted through the coil. The suction further controls the displacement of the valve stem inside the valve body. At the same time, the displacement of the valve stem will resist the deformation of the spring. When the external power source is cut off, the spring force of the spring is used to push the valve stem. The valve stem is returned to the original position inside the valve body; the solenoid valve and the spring cooperate to drive the valve stem, thereby achieving the purpose of the fluid control valve to control the flow of the working fluid.

However, in the prior art solenoid valve, in order to ensure that the electromagnetic coil has sufficient magnetic attraction to control the displacement of the valve stem, the volume of the electromagnetic coil is increased to achieve the effect of the valve stem displacement control, thereby making the fluid control valve larger in overall design. The relative weight is also heavy, which makes the fluid control valve inconvenient to connect to other mechanisms or components.

The purpose of the present invention is to improve the volume of the valve body controlled by the electromagnetic coil in the prior art, which causes the lack of installation inconvenience. With the implementation of the creative technique, the volume of the fluid control valve can be reduced, and the connection is easy to install. To other institutions or components.

In order to achieve the above-mentioned creative purpose, the technical means adopted in the present invention is to design a piezoelectric control guided actuating valve having a valve body, a guiding seat, a piezoelectric actuator and a pushing block; At least one body, a valve stem and a second end cover, the body has a constant hole and a connecting passage, the through hole penetrating the body, the valve stem is disposed inside the through hole of the body, the second end cover Connecting an end surface of the body and a spring, the spring end is connected to the second end cover, and the other end is abutted against one end of the valve stem, and the valve stem overcomes the elastic force of the spring, so that the valve stem is in the Internally displaced, the guiding seat and the piezoelectric actuator are connected to the other end surface of the body of the valve body; the guiding seat has at least a lead portion, a guiding channel and a guiding hole, and the lead portion is formed on the lead portion a guide hole is formed in the center of the guide seat at the center of the guide seat, and the guide passage is formed in the guide seat, and communicates with the central hole of the lead portion, and the guide passage is correspondingly connected to the connecting passage of the valve body, a guiding hole is formed through the guiding seat to communicate with the guiding seat The second end of the valve stem portion is received by the guiding seat; the piezoelectric actuator has a housing, a fixing base, a piezoelectric element and a push rod; the housing has a mounting groove and a convex portion An outlet portion is formed on one side of the housing, the protruding portion is formed on the opposite side of the housing, and a through hole is formed through the mounting groove, and the protruding portion is away from the shell a recess is formed in the end surface of the body, the recess is communicated with the through hole of the mounting groove, and the protruding portion is received in the guiding seat; the fixing seat is received in the mounting groove of the housing and formed on one end surface a groove portion; the piezoelectric element is disposed in the mounting groove of the housing, and protrudes at one end portion to form an abutting portion, and the other end of the piezoelectric element is mounted on the groove portion of the fixing seat; a through hole of the protruding portion of the housing is received in the recess of the protruding portion, and an abutting portion is formed on the side of the outer edge of the push rod, and the receiving portion is abutted by the abutting portion of the piezoelectric element. Displacement of the push rod to selectively abut the lead portion of the guide seat; the push block is received in the guide seat Inner end of the pushing block for each of two opposite end surfaces and end surfaces of the stem should be the guiding seat.

The piezoelectrically controlled guide actuated valve, wherein the push rod has a rod body and an end plug, the end plug is connected to one end of the rod body, and the rod body is connected to the wall surface of the end plug to form a radial direction a drainage hole, the central portion of the rod body axially penetrates to form a guide channel, the approach channel communicates with the drainage hole; one end of the rod body passes through the through hole of the protruding portion, and the end plug is received in the groove of the protruding portion The end plug corresponds to the lead portion of the guide seat.

The piezoelectric control guide actuated valve, wherein the valve body further has a first end cover; the system has an elongated block and has a plurality of through holes and a blind hole, the through hole is formed in the The opposite ends of the body are respectively formed on the opposite sides of the body and are connected to the opposite sides of the body, and the blind holes are formed in the corresponding holes of the body, and the connecting channels are connected In the blind hole, the first end cover is connected to one end surface of the body, and has a mounting seat, the mounting seat is formed through the end hole, and the rod body of the push rod is mounted on the mounting base, the rod The guide channel of the body corresponds to the end hole, the side of the housing forming the mounting groove abuts against the first end cover; the second end cover is connected to the opposite end surface of the body, and the second end cover is connected to the center of the end surface of the body A spring is disposed, one end of the spring abuts against the second end cover, and one end of the valve stem abuts against the other end of the spring.

The piezoelectrically controlled guiding actuating valve further has a first receiving groove and a second receiving groove; the first receiving groove and the second receiving groove are respectively recessed and formed on the guiding seat The lead-out portion is formed at the first receiving groove, the guiding hole is connected to the first receiving groove and the second receiving groove, and the valve stem portion end is received in the second receiving groove and is opposite The end surface of the guiding groove forming the second receiving groove abuts against the opposite end surface of the second end cover of the body, and the side of the housing forming the protruding portion abuts against the guiding seat, the convex portion The outlet is accommodated in the first pocket.

The piezoelectric control-guided actuating valve, wherein a plurality of fixing holes are formed on one end surface of the body; the guiding seat further has a plurality of first perforations, the first perforations are formed through the guiding seat, and the first perforating pair a fixing hole of the body; the housing of the piezoelectric actuator further has a plurality of second perforations, the second perforation penetrating through the first perforation formed in the housing and corresponding to the guiding seat; the first end cover Further, the connector has a plurality of connecting members, and the connecting member penetrates the first end cover, the second through hole of the piezoelectric actuator housing, and the first through hole of the guiding seat to connect the fixing hole of the body.

The piezoelectric control-guided actuated valve, wherein the guide seat further has a receptacle and a test piece; the recess is formed on one side of the guide seat and communicates with the first receptacle; The test piece has a flange portion and a compression spring. The flange portion is formed on the outer wall surface of the test piece. The compression spring is sleeved on the outer edge of the test piece, and the test piece is mounted on the receptacle. The opposite ends of the compression spring abut against the flange portion and the receptacle respectively, and the end of one end of the test piece has a conical shape and protrudes into the first receiving groove, and the opposite end portion of the test piece protrudes from the other end portion The seat.

The piezoelectric control guide actuated valve, wherein the end surface of the second end cover is recessed to form a recess, and the recess is correspondingly connected to the connecting passage and the through hole of the body, and the spring end is abutted Relying on the bottom surface of the recess; the stem abuts against the end of the spring corresponding to the recess.

The advantage of this creation is that the piezoelectric element of the piezoelectric actuator drives the displacement of the push rod to determine whether the working fluid flows out of the lead portion of the guide seat, so that the working fluid passes through the guide hole to push the push block and the valve body. The displacement of the valve stem, thereby reducing the volume and weight of the overall design of the fluid control valve, allows the piezoelectric controlled guide actuation valve of the present invention to be easily attached to other mechanisms or components.

10‧‧‧ Ontology

11‧‧‧Tongkong

12‧‧‧through hole

13‧‧‧Blind hole

14‧‧‧Linkage

15‧‧‧Fixed holes

20‧‧‧ Guide seat

21‧‧‧first slot

22‧‧‧Second cavity

23‧‧‧Exporting Department

24‧‧‧ Guide channel

25‧‧‧ lead hole

26‧‧‧ 容座

27‧‧‧Test pieces

271‧‧‧pressure spring

28‧‧‧First perforation

30‧‧‧ Piezoelectric actuator

31‧‧‧Shell

311‧‧‧Installation slot

312‧‧‧Protruding

32‧‧‧ fixed seat

33‧‧‧Piezoelectric components

331‧‧‧Affiliation

34‧‧‧Put

341‧‧‧ rod body

3411‧‧‧Attendance Department

3412‧‧‧drain

3413‧‧‧ Approach

342‧‧‧End plug

35‧‧‧Second perforation

40‧‧‧First end cap

41‧‧‧Installation seat

411‧‧‧End hole

42‧‧‧Connecting parts

50‧‧‧Second end cap

51‧‧‧ Spring

52‧‧‧ recess

60‧‧‧ push block

70‧‧‧ valve stem

Figure 1 is a perspective view of the creation.

Figure 2 is an exploded view of the creation.

Figure 3 is a perspective view of the creation guide.

Figure 4 is a front cross-sectional view of the present invention.

Figure 5 is a top cross-sectional view of the creation.

Fig. 6 is a schematic view of the piezoelectric element driving pusher of the present invention.

Fig. 7 is a front cross-sectional view showing the case where the pusher does not abut against the lead portion.

The technical means adopted by the present invention for achieving the intended purpose of creation are further explained below in conjunction with the drawings and the preferred embodiment of the present invention.

Referring to FIG. 1 and FIG. 2, the piezoelectric controlled guiding actuating valve of the present invention has a valve body, a guiding seat 20, a piezoelectric actuator 30 and a pushing block 60; the guiding seat 20 The piezoelectric actuator 30 is coupled to the valve body.

The valve body has a body 10, a first end cap 40, a second end cap 50 and a valve stem 70.

Referring to FIG. 4 and FIG. 5 , the body 10 is an elongated block and has a consistent hole 11 , a plurality of through holes 12 , a blind hole 13 and a connecting passage 14 . The through hole 11 is formed through the body. The plurality of through holes 12 are formed at intervals on the opposite sides of the body 10 and are connected to the through holes 11 . The blind holes 13 are formed in the body 10 corresponding to one of the through holes 12 . The connecting passage 14 is formed in the body 10 and is connected to the blind hole 13; the end surface of the body 10 forms a plurality of fixing holes 15, as shown in FIG.

As shown in FIG. 4 and FIG. 5 , the first end cover 40 is connected to one end surface of the body 10 . The first end cover 40 is a single body and has a mounting seat 41 . The mounting seat 41 is formed through the body. The first end cover 40 further has a plurality of connecting members 42. As shown in FIG. 2, the connecting member 42 passes through the hole of the first end cover 40 to connect the fixing hole 15 of the main body 10.

As shown in FIG. 2, FIG. 4 and FIG. 5, the second end cover 50 is connected to the opposite end surface of the main body 10. The second end cover 50 is connected to the center of the end surface of the main body 10, and a spring 51 is mounted thereon. The recessed portion 52 defines a recess 52. The recess 52 is correspondingly connected to one end of the body 10 connecting passage 14 and the through hole 11. The spring 51 has one end abutting against the bottom surface of the recess 52.

Referring to FIG. 2 and FIG. 4 , the valve stem 70 is displaceably disposed through the through hole 11 of the body 10 , and one end abuts against the other end of the spring 51 of the second end cover 50 to correspond to the recess. 52.

The guiding seat 20 is in communication with the valve body. Referring to FIG. 3 and FIG. 4, the guiding seat 20 is a single body and has at least a first receiving slot 21, a second receiving slot 22, and an outgoing lead. a first guiding groove 21 and a second guiding groove 22 are respectively recessed and formed on opposite end faces of the guiding seat 20, and the lead-out portion 23 is formed on the first portion The central portion of the cavity 21 has a hole at the center thereof. The guide channel 24 is formed in the guiding seat 20 and communicates with the central hole of the lead portion 23. The guiding hole 25 is formed through the guiding seat 20 . The first receiving groove 21 and the second receiving groove 22 are connected to each other; the end face of the guiding groove 20 forming the second receiving groove 22 abuts against the opposite end surface of the body 10 connecting the second end cover 50, the valve The end portion of the rod 70 is received in the second receiving groove 22. Please refer to FIG. 5 at the same time, and the guiding passage 24 is correspondingly connected to the other end of the connecting passage 14.

As shown in FIG. 3 and FIG. 4 , the guiding seat 20 further has a receptacle 26 , a test piece 27 and a plurality of first through holes 28 . The receptacle 26 is recessed on one side of the guiding seat 20 , and The test piece 27 has a flange portion and a compression spring 271 formed on the outer wall surface of the test piece 27, and the compression spring 271 is sleeved on the test piece 27 In the outer edge, the test piece 27 is mounted on the receptacle 26, and the opposite ends of the compression spring 271 abut against the flange portion of the test piece 27 and the receptacle 26, and the end of the test piece 27 The head is conical and extends into the first receiving slot 21, and the opposite end portion of the test piece 27 protrudes from the receptacle 26; the first through hole 28 is formed through the guiding seat 20, as shown in FIG. The first through hole 28 corresponds to the fixing hole 15 of the body 10 and is pierced by the connecting member 42 of the first end cover 40.

Referring to FIG. 2 and FIG. 4 , the opposite sides of the piezoelectric actuator 30 respectively abut the guiding seat 20 and the first end cover 40 , and have a housing 31 , a fixing base 32 , A piezoelectric element 33 and a push rod 34.

The housing 31 is a single body and has a mounting slot 311 and a protruding portion 312. The mounting slot 311 is recessed on one side of the housing 31. The protruding portion 312 is formed on the housing 31 opposite to the housing 31. On the other side, a through hole is formed in the mounting groove 311. The protruding portion 312 is recessed away from the end surface of the housing 31 to form a groove, and the groove is communicated with the through hole of the mounting groove 311. The housing 31 The side surface of the protruding portion 312 abuts against the guiding seat 20 , the protruding portion 312 is received in the first receiving groove 21 , and the side surface of the housing 31 forming the mounting groove 311 abuts against the first end cover 40 . The housing 31 further has a plurality of second through holes 35, as shown in FIG. 2, the second through holes 35 are formed through the first through holes 28 formed in the housing 31 and corresponding to the guiding seat 20, the first end cover 40 The connecting member 42 passes through the first through hole 28 .

The fixing base 32 is formed as a single body, and a fixing portion 32 defines a groove portion. The fixing base 32 is received in the mounting groove 311 of the housing 31.

Referring to FIG. 4 and FIG. 6 , the piezoelectric element 33 is a single body, and an abutting portion 331 is formed at one end; the piezoelectric element 33 is received in the mounting groove 311 of the housing 31 , and The other end of the piezoelectric element 33 is mounted on the groove portion of the fixing base 32, and the abutting portion 331 is disposed toward the other end of the fixing base 32.

The push rod 34 has a rod body 341 and an end plug 342. The end plug 342 is connected to one end of the rod body 341. The outer side of the rod body 341 forms an abutting portion 3411. The rod body 341 is connected to the end portion. A drainage hole 3412 is formed in the wall surface of the plug 342. The guide body 3413 is axially penetrated to form a guide channel 3413. The approach channel 3413 communicates with the drainage hole 3412. The protrusion 312 is formed at one end of the rod body 341. The end hole 411 of the first end cover 40 is disposed, and the end channel 342 of the first end cover 40 is disposed corresponding to the end hole 411 of the seat 41. The end plug 342 is received in the groove of the protruding portion 312. The end plug 342 corresponds to the lead portion 23 of the guiding seat 20, and the receiving portion 3411 is abutted against the abutting portion 331 of the piezoelectric element 33, so that the push rod 34 is displaced to selectively abut the lead portion. Part 23.

The push block 60 is disposed on the second receiving slot 22 of the guiding base 20, and the opposite end faces of the pushing block 60 respectively correspond to the end surface of the valve stem 70 and the second receiving slot 22 forms the surface of the guiding hole 25 The push block 60 is selectively abuttable against the end face of the valve stem 70.

In the present invention, when the driving voltage of the piezoelectric element 33 is applied, the piezoelectric element 33 is deformed, and the abutting portion 331 is moved by the abutting portion 3411 of the rod body 341 of the push rod 34. Abutting or away from the lead portion 23 of the guiding seat 20; when the end plug 342 of the push rod 34 is away from the lead portion 23, part of the working fluid can flow out from the lead portion 23 and flow to the guiding hole 25 To push the push block 60, so that the push block 60 abuts against the end surface of the valve stem 70, thereby overcoming the elastic force of the spring 51 of the second end cover 50, so that the valve stem 70 is in the through hole 11 of the body 10. The internal displacement forms the function of the working fluid flow direction.

When the end plug 342 of the push rod 34 abuts against the lead portion 23, the working fluid cannot flow out from the lead portion 23, and the valve stem 70 is restored to the original position due to the spring force of the spring. The push block 60 is also Abutting the valve stem 70 to close the guiding hole 25, while the working fluid remaining in the first receiving groove 21 passes through the drainage hole 3412 of the rod body 341, the approach channel 3413, and the first end The end hole 411 of the cover 40 mounting seat 41 is discharged to the outside atmosphere.

Referring to FIG. 3 to FIG. 5 , a part of the working fluid enters the blind hole 13 of the body 10 through a through hole 12 , and the guide channel 24 of the connecting channel 20 is sequentially passed from one end of the connecting channel 14 to the guiding channel 24 . Referring to FIG. 6 at the same time, if the end plug 342 of the push rod 34 abuts against the lead portion 23, the working fluid stays in the guide passage 24; and another part of the working fluid passes through the joint passage 14 The other end flows to the recess 52 of the second end cover 50. The pressure formed by the working fluid on the end surface of the valve stem 70 will be pushed against the valve stem 70 together with the spring 51, so that the valve stem 70 is tight. Reaching the push block 60.

On the other hand, if the end plug 342 does not abut against the lead portion 23, as shown in FIG. 7, the working fluid in the guide passage 24 flows out from the lead portion 23, and the guide hole 25 is pushed through the guide hole 25. Pushing block 60, and then pushing the valve stem 70 by the push block 60, because the cross-sectional area of the guiding hole 25 is smaller than the end of the valve stem 70 The surface area, therefore, in the case where the working fluid pressure is the same in the guiding hole 25 and the recess 52, the thrust of the working fluid acting on the pushing block 60 will be greater than the thrust of the working fluid acting on the valve stem 70, and overcome The elastic force formed by the spring 51 on the valve stem 70 causes the valve stem 70 to be displaced, thereby changing the mutual communication of the through holes 12 of the valve body to form a flow direction of the working fluid.

The piezoelectric element 33 is specifically a piezoelectric ceramic material (PZT-QA) having a natural frequency of 65,774 Hz, and therefore, the motion period is about 15 μs, and the maximum displacement per period is 8.2 μm. When the pushing time is longer than 33 ms, the displacement stroke of the abutting portion 331 of the piezoelectric element 33 may be greater than 5 mm, and the time required for the displacement from the power supply to the abutting portion 331 is less than 10 ms. Therefore, the piezoelectric control of the present invention is guided. The volume required for the implementation of the actuated valve is small; the piezoelectric actuator 30 is used in place of the prior art solenoid valve, so that the overall volume and weight of the fluid control valve are reduced, thereby making the piezoelectric control guide actuated valve of the present invention Easy to connect to other mechanisms or components.

Referring to FIG. 4, when the end plug 342 of the push rod 34 abuts against the lead portion 23, the test piece 27 can be pressed to know whether the movement of the push rod 34 can be normally performed; 27 is pressed to compress the compression spring 271 such that the test piece 27 is displaced downward, and then one end of the test piece 27 extends into the first receiving groove 21, that is, pushes the end surface of the end plug 342 of the push rod 34, so that The push rod 34 is displaced rearward away from the lead-out portion 23, so that the working fluid can flow out to perform the action of pushing against the displacement of the valve stem 70; after the end of the test, the pressure on the test piece 27 is released, so that the spring of the pressure spring 271 is released. The force is pushed against the test piece 27 to reset.

The above description is only a preferred embodiment of the present invention, and does not impose any form limitation on the present invention. Although the present invention has been disclosed above in the preferred embodiment, it is not intended to limit the present creation, and has any technical field. A person skilled in the art can make some modifications or modifications to equivalent embodiments by using the above-disclosed technical contents without departing from the technical scope of the present invention. The technical essence of the creation Any simple modification, equivalent change and modification of the above embodiments are still within the scope of the technical solution of the present invention.

10‧‧‧ Ontology

11‧‧‧Tongkong

12‧‧‧through hole

13‧‧‧Blind hole

14‧‧‧Linkage

20‧‧‧ Guide seat

21‧‧‧first slot

22‧‧‧Second cavity

23‧‧‧Exporting Department

24‧‧‧ Guide channel

25‧‧‧ lead hole

26‧‧‧ 容座

27‧‧‧Test pieces

271‧‧‧pressure spring

30‧‧‧ Piezoelectric actuator

31‧‧‧Shell

312‧‧‧Protruding

32‧‧‧ fixed seat

33‧‧‧Piezoelectric components

34‧‧‧Put

40‧‧‧First end cap

41‧‧‧Installation seat

411‧‧‧End hole

50‧‧‧Second end cap

51‧‧‧ Spring

52‧‧‧ recess

60‧‧‧ push block

70‧‧‧ valve stem

Claims (10)

A piezoelectric control guided actuation valve having a valve body, a guiding seat, a piezoelectric actuator and a pushing block; the valve body has at least a body, a valve stem and a second end cap, The body has a constant hole and a connecting passage, the through hole penetrating the body, the valve stem is disposed inside the through hole of the body, the second end cover is connected to an end surface of the body and a spring is mounted, and the spring end is The second end cover is connected, and the other end is abutted against one end of the valve stem. The valve stem overcomes the elastic force of the spring to displace the valve stem inside the through hole. The guiding seat and the piezoelectric actuator are connected. The other end surface of the body of the valve body; the guiding seat has at least one lead portion, a guiding channel and a guiding hole formed at a center of one end of the guiding seat and forming a hole in the center, a guiding channel is formed in the guiding seat, and is connected to the central hole of the lead-out portion, the guiding channel is correspondingly connected to the connecting passage of the valve body, and the guiding hole is formed through the guiding seat to communicate with the guiding At the two ends of the seat, the end of the stem portion is received in the guiding seat; the piezoelectric actuator a housing, a fixing base, a piezoelectric element and a push rod; the housing has a mounting groove and a protruding portion, the mounting groove is recessed on one side of the housing, and the protruding portion is convexly formed A recess is formed in the opposite side of the housing, and a through hole is formed in the mounting groove. The protruding portion is recessed away from the end surface of the housing to form a groove, and the groove is communicated with the through hole of the mounting groove. The fixing seat is disposed in the mounting groove of the housing, and defines a groove portion on one end surface; the piezoelectric element is accommodated in the mounting groove of the housing, and protrudes at one end portion Forming an abutting portion, the other end of the piezoelectric element is disposed in the groove portion of the fixing seat; the push rod penetrates the through hole of the protruding portion of the housing, and is received in the groove of the protruding portion, and the pushing Forming an abutting portion on the outer edge of the rod, the bearing portion is abutted against the abutting portion of the piezoelectric element, so that the push rod is displaced to selectively abut the lead portion of the guiding seat; The push block is received in one end of the guide seat, and the opposite end faces of the push block respectively correspond to the end face of the valve stem and the guide seat. The piezoelectrically controlled guide actuated valve of claim 1, wherein the push rod has a rod body and an end plug, the end plug being connected to one end of the rod body, the rod body being connected to the wall surface of the end plug Radially forming a drainage hole, the central portion of the rod body axially penetrates to form a guide channel, and the approach channel communicates with the drainage hole; the end of the rod body passes through the through hole of the protruding portion, and the end plug is accommodated in the protruding portion a groove of the portion corresponding to the lead portion of the guide seat. The piezoelectric control-guided actuated valve of claim 2, wherein the valve body further has a first end cap; the system has an elongated block and has a plurality of through holes and a blind hole, the through hole The through holes are formed on the opposite ends of the body, and the plurality of through holes are respectively formed on the opposite sides of the body, and are connected to the through holes, and the blind holes are formed at a corresponding one of the through holes of the body. The connecting end is connected to the blind hole; the first end cover is connected to one end surface of the body, and has a mounting seat, the mounting seat is formed through the end hole, and the rod body of the push rod is installed in the mounting The pedestal of the shank corresponds to the end hole, and the side of the casing forming the mounting groove abuts against the first end cover; the second end cover is connected to the opposite end surface of the body. The piezoelectric control-guided actuating valve of claim 3, the guiding seat further has a first receiving groove and a second receiving groove; the first receiving groove and the second receiving groove are respectively formed in the recess a second end of the guide seat, the lead portion is formed at the first receiving slot, the guiding hole is connected to the first receiving slot and the second receiving slot, and the end of the stem portion is received in the second slot a groove corresponding to the guide block, the end face of the guide seat forming the second groove abutting against the opposite end face of the second end cover of the body, the side of the case forming the protrusion abutting the guide The protrusion is received in the first receiving slot. The piezoelectric control-guided actuation valve of claim 3 or 4, wherein the body has a plurality of fixing holes formed on one end surface thereof; the guiding seat further has a plurality of first perforations formed through the guiding seat The first through hole corresponds to the fixing hole of the body; the housing of the piezoelectric actuator further has a plurality of second through holes, the second through hole penetrating through the first through hole formed in the case and corresponding to the guiding seat; The first end cover further has a plurality of connecting members, the connecting member penetrating the first end cover, the second through hole of the piezoelectric actuator housing and the first through hole of the guiding seat to connect the fixing holes of the body. The piezoelectrically controlled guide actuated valve of claim 5, wherein the guide seat further has a receptacle and a test piece; the recess is formed on one side of the guide and communicates with the first a test piece having a flange portion and a compression spring formed on the outer wall surface of the test piece, the compression spring sleeved on the outer edge of the test piece, the test piece being mounted on the test piece The two opposite ends of the pressure spring abut against the flange portion and the receptacle respectively, and the end of one end of the test piece has a conical shape and protrudes into the first cavity, and the test piece is opposite to the other One end portion extends out of the receptacle. The piezoelectric control-guided actuated valve of claim 6, wherein the end surface of the second end cover is recessed to form a recess, and the recess is correspondingly connected to the connecting passage and the through hole of the body. One end of the spring abuts against the bottom surface of the recess; the stem abuts against the end of the spring corresponding to the recess. The piezoelectric control-guided actuated valve of claim 3, wherein the end surface of the second end cover is recessed to form a recess, and the recess is correspondingly connected to the connecting passage of the body. a hole, one end of the spring abuts against a bottom surface of the recess; the valve stem abuts against the end of the spring corresponding to the recess. The piezoelectric control-guided actuated valve of claim 8, wherein the body has a plurality of fixing holes formed on one end surface thereof; the guiding seat further has a plurality of first through holes, the first through holes being formed through the guiding seat, The first perforation corresponds to the fixing hole of the body; the housing of the piezoelectric actuator further has a plurality of second perforations, the second perforation penetrating through the first perforation formed in the housing and corresponding to the guiding seat; the first The end cover further has a plurality of connecting members, the connecting member penetrating the first end cover, the second through hole of the piezoelectric actuator housing and the first through hole of the guiding seat to connect the fixing holes of the body. The piezoelectrically controlled guide actuated valve of claim 9, wherein the guide seat further has a receptacle and a test piece; the recess is formed on one side of the guide seat, and is connected to the first a test piece having a flange portion and a compression spring formed on the outer wall surface of the test piece, the compression spring sleeved on the outer edge of the test piece, the test piece being mounted on the test piece The two opposite ends of the pressure spring abut against the flange portion and the receptacle respectively, and the end of one end of the test piece has a conical shape and protrudes into the first cavity, and the test piece is opposite to the other One end portion extends out of the receptacle.